<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>Intro</title>
    <link rel="stylesheet" href="css/corporate.css">
</head>
<body>
    <div class="class-1">Class 1</div>
    <div class="class-2">Class 2</div>
</body>
</html>